Reeling machine



Jan. 16, 1934. KQWADA 1,943,798

REELING MACHI NE Filed Jan. 12, 1932 I I l I patented Jan. 16, 1934 UNITED STATES PATENT OFFICE 2 Claims.

- This invention relates to an improved machine for reeling natural silk thread taken from the cocoon first to be made to pass over a conical rotating roller, then to be made to pass over guide with the changeable tension of the thread during the process of reeling.

The object or" this invention is to regulate automatically the passage of the thread over the conical roller and thus wind the thread gently around the spool, under practically constant tension, said regulating action, being done, by utilizing the action of an intermediate lever, in order-to accord with the increase or decrease of tension of the reeling thread and with the change of releasing resistance of the cocoon at the cocoon release portion so that the increase or decrease of tension due to the change of the diameter of the winding of the thread on the spool may be regulated and the original state substantially retained.

iother object and characteristic point of this invention is to mechanically connect the spool and the conical intermediate roller and by the action and aid of a suitable mechanism to make the spool and the middle portion of the conical iroller to rotate at the same speed.

In order to make this invention clear, an example of the reeling machine of this invention will be hereinafter described with reference to the accompanying drawing.

Fig. 1 is a front elevational View partly in section of the machine and Fig. 2 is a sectional plan taken on the line AA of Fig. 1.

Referring now to the drawing, the silk thread (1) is reeled up and passing over the guide roller 40 (3) provided at one end of the rocking lever (2) is conducted to the conical rotating roller (4) after passing around this roller the thread is further led through the guide roller (5) provided at the other end of the lever (2) to the spool (6) and thus the reeling action is completed. The conical rotating roller (4) serves to carry the thread and in order to prevent the slip of the silk thread or to increase the friction, the outer surfaces of the roller (4) are preferably covered with gum or other similar substances.

The roller (4) and the spool (6) are connected mechanically and in order to give mutual relative movements, I provide on a common revolving shaft (7) two bevel wheels (8 and 9) while on the other hand I provide a bevel wheel (10) on the shaft (12) attached to the roller (4) and bevel wheel (11) on the shaft (13) of the spool (6) in a way that these two bevel wheels (10 and 11) will gear with each of the above mentioned two bevel wheels (8 and 9), and by making the common shaft (7) to rotate by a suitable motive power continuously and in such a way that the speed of carrying the thread in the middle portion of the outer surface of the roller (4) and the speed of winding the thread to the spool (6) are the same. I provide on the lever (2) a regulating weight (14) which may afford to the thread a regular and constant length and stretch and therefore a constant tension.

To explain the working in detail, as long as the tension of the thread is kept constant by the weight (14) as it goes to the guide roller (5) on the lever (2), the lever keeps its balance and stands still but when the tension of the thread increases due to the increase of diameter of the thread wound around the spool (6) or from other cause, the guide roller (5) will be pulled upward and the lever (2) will move up in the direction shown by arrow (A) in Fig. 1 and therefore the other guide roller on the other end of the lever will move down and the winding posi tion of the thread (1) on the roller (4) will also move down to the position where the diameter is larger, and consequently the speed of the thread over the roller (4) will increase and more thread will be sent than is led to the second guide roller (5). Thus the thread will become relaxed somewhat, and the above mentioned increase of tension will be regulated and the original state retained. On the contrary, when the tension of the thread decreases, the lever (2) moves in the direction just opposite to that in the previous case and causes the first guide roller (3) to move upwardly while the thread comes to a position corresponding to the smaller diameter on the roller (4), thus resulting in the decrease of the speed and consequently the thread will be somewhat stretched and thus returned to its original state.

According to the apparatus as described above,

I can automatically change the winding position of thread (1) on the conical roller (4) to accord with an increase or decrease of tension on the thread, by utilizing the movement of the rockproperly met with. In short, I can give a certain constant tension to the thread during the whole process of reeling.

Submerged or half submerged in hot water in the cocoon releasing pan (15) is a horizontal reversible ratchet roller (16) which has a zigzagged perimeter (17) as shown in Fig. 1. In reeling the cocoons (18) are made to touch the outer surfaces of the said roller (16) and as the skin of the cocoons becomes thinner and increases its stickiness, the thin skinned cocoons will have tendency to stick to the surfaces of the roller (16) and accompanying the rotation of the roller (16) these cocoons are removed to the opposite side of the roller in the pan, and as a result as the reeling continues the thin skinned cocoons (19) are separated from the other cocoons (18).

As soon as the cocoons are removed to the other side of the roller, the thread (20) issuing from the cocoons, is received in the crevices provided in a fork shaped gauge plate (21) which is placed vertically up and which prevents the further upward motion of the thin skinned cocoons (19) which then drop down. Further at the bottom of the pan (15) and on the side of the roller (16) where the release of the cocoons takes place, I provide a submerged conveyer (22) for carrying pupa and dropped cocoons (24) I also provide another submerged conveyer (23) on the opposite side of the roller in the pan wherein the thin skinned cocoons are transported for receiving the cocoons dropped. Thus I am able to carry out pupa and dropped cocoons (24) on one side and dropped thin skinned cocoons on the other side to their respective assembly places.

Having now particularly described and ascertained the nature of my said invention, I declare that what I claim is:-

1. In a reeling machine of the character described, a rotatably mounted spool about which a thread is wound, a conical revolving roller which has a rotating movement corresponding to the spool and about which the thread is passed prior to being wound on the spool, a rockably mounted lever about the ends of which the thread is guided prior to engaging the roller and being wound on the spool, the rocking lever being positioned between the conical revolving roller and the spool, a guide roller at the end of the lever adjacent the spool, the thread issuing from the conical roller being passed about the guide roller prior to passing up to the spool thus causing the lever to rock in accordance with the increase or decrease of tension of the thread passing said guide roller, and automatically altering the winding position of the thread on the conical roller and thereby regulating the speed of the passage of the thread and giving a constant tension to the winding thread.

2. An improved winding machine of the character described including a rotatably mounted spool about which a thread is adapted to be wound, a vertically arranged conical roller transmission means between the spool and roller to cause the same to rotate at corresponding speeds, the thread being adapted to be passed about the conical roller prior to being wound on the spool, a rockably mounted lever arranged between the roller and spool, guide rollers rotatably mounted at the ends of said lever over one of which the thread passes prior to engaging the roller and over the other of which the thread passes immediately after engaging the said roller and prior to the passage of the thread to the spool, and a regulating weight associated with the lever, sub stantially as and for the purposes set forth.

ISOJ I KOWADA. 

